For 4x Gigabit SFP, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 4x Gigabit SFP has been well received by many customers and enjoyed a good reputation in many countries. Importgm International limited 4x Gigabit SFP have characteristic design & practical performance & competitive price, for more information on the 4x Gigabit SFP, please feel free to contact us.